Because Test::Warnings runs a test of its own, so the harness is satisfied. Output of your test script using Test::Warnings under --verbose: 

$ prove -lrv 11107390.t
11107390.t .. 
ok 1 - no (unexpected) warnings (via done_testing)
1..1
ok
All tests successful.

[download]

Hope this helps!


The way forward always starts with a minimal test.

In reply to Re^3: Unit test of script fails unless Test::Warnings is used?! by 1nickt
in thread Unit test of script fails unless Test::Warnings is used?! by wanna_code_perl

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